Suspension-spring for vehicles.



A. VERMERSCH. SUSPENSION SPRING PoR VEHICLES.

Patented Dec. 23, 1913.

2 SHEETS-SHEET 1.

A. VERMERSCH. SUSPENSION SEEING EOE VEHICLES.

APPLICATION FILED SEPT. 16, 1912.

Patented Dec. 23

2 SHEETS-SHEET 2.

l l f MMM sion-Springs for Vehicles, of whichAVS the folaiioLrHE vEEMEEsoH, or LILLE, iin-ANCE.

SUSPENSION-SPRING EOE VEHICLES.

To all* whom it mayoria/cem:

Be it known that I, AnoLrnE/VERMERSCH, a citi-Zenl of the Republic 'of France, residing' at Lille, France, new and useful improvements in Suspenlowing is a Vsp'eciiica.ti in':--

This apparatus the strong oscillations .of the laminated springs used in vehicles and more .particularly motor cars, and consequently to provide a very smooth suspension and to protect the whole mechanism.

lln the 'accompanying drawing, Figures 1 4 illustrate apparatus intended generally f for the front of the cars. Fig. 1 is avertical section on line A B C in Fig. 3; Fig. la illus-v trates the connection of the device shown in hand, a large hollow Fig. 1 to a vehicle. Fig.' 2 is a side elevation; Fig. 3 is a horizontal section on line D E in Fig. l; Fig. Llis a plan of the small pistons upside down. Figs. 5, 6 and 7 illustrate apparatus intended generally for the rear of the cars. Fig. 5 is a vertical section; Fig. 5? illustrates the connection of the device shown in Fig. 5 to a vehicle. Fig. 6 is a side elevation; Fig. 7 is a plan.

rlhe apparatus shown in Figs. l to l com.- prises, onthe one hand, a. large cylinder 1 and two small cylinders 2, the whole in one piece Ywith the strap or shacklel 3 connected to the leaf spring of the car; von the other piston or plunger 4c and two small pistons 5the whole iii one piece with the shackle 6 secured to the frame of the car.

The interior of the cylinders contains helical springs 7 'and' 8, the small ones 'of' which must practically balance the larger one. The said cylinders also contain oil or other similar material, and the bottom of the small cylinders communicates with theI large one by means of the conduits 9. F1-

nally a screw 10 enables the tension`ofjthe large spring '7 Vto be regulated. The small i pistons 5 are provided with severalholes,

one of which is provided with a flap valve f 11, affording a gradual passage to the oil.

in the other and .12 secured bymeans 'tects the. rubbing` part of the large piston A sheath of leather or other supple material of two collars 13, proagainst dirt-and dust.

The apparatus shown on the one hand, a large cylin. der a and a small one boontained one withconnected by a shackles.

have invented certain is intended to counteract' lowing: When, owing to .a

ually' while the holes are tothe laminated or"A leaf spring of the car; and on the other hand, a large hollow piston ol and a smallone e; the who'le forming one piece with) the shackle f connectedI to the frame ofthe l' car.

Two concentric helical springs g land i 'are arranged between the two cylinders. A

bottom 'screws' is intended to regulate their "tension, and oil or other similar material occupies .the whole interior of the cylinders; nally asheatli' j secured to the upper portion of the large cylinder, protects the rub?` bing portion of the said piston from dirt o anddust.'

'lhe'small piston e is formed by leathers 7c, and its cylinderis provided throughout the whole of .its height with a number of holes Z.

The number of springs can be any desired, and if .necessary diiierent regulations can be provided for the tensions.

The operation ofthe device when attached to the front wheelsv of a vehicle is the folshock transmitted by the leaf spring, the cylinders 1 and 2 rise and compress the helical springs, the

oil contained in them, is forced out through the free holes of the small pistons 5; thus .i

theshock received is deadened. anyjumping ofthe frame and excessive strain' on the leaf springV is.; avoided, and thus the car is smoothly suspended. rlhe helical springs in Atheir vdescent resume their original position more quickly owing 'tothe valve 11 affording a larger passage to the oil.

The operation of the device vvhenattached to the rear wheels'of the vehicle is the following: For the'same shocks as before, the cylinders a and 'b rise and compress thec small piston, passes quickly in the beginning,-

the small piston e, oil is reduced. The

helical springs, thcpoil contained below the 10oV descent of the cylinders, j

and -consequently'the resumption of normal tension by the springs, takes place more quickly owing to the oilbeing. able to pass between the leathers of the piston e and its cylinder, the leathers being then compressed.-

'lli'is latterapparatus, like the, former, prol duces a smooth, suspension.

Claims 1. Spring suspens'on mechanism for ve# J c a n hicles comprising three communicating, oiliii-o.

containingy cylinders, two of ywhich beingv I smaller than the third, helical springs in each of said cylinders, the springs Within the smaller cylinders balancing the spring in the larger one, means for connecting the cylinders with the vehicle spring, conduits establishing communication between the cylinders and the bottom thereof, means for regulating the tension of the large spring, and pistons within said cylinders of dimensions to suit the dimensionV of said cylinders, the smaller pistons each provided with a Valved opening and a free opening and means for protecting the exposed portion of the large piston against dirt and dust, substantially as described.

2. Spring suspension mechanism for Vehicles, comprising three communicating, oilcontaining cylinders, two of which being smaller than the third, vhelical springs in leach of said cylinders, the springs in the smaller cylinders balancing the spring in .a valved opening anda free opening, and a protecting sheath of pliable material for the exposed port-ion of the large piston, and means for securing said sheath to the cylinder containing the 'large piston, substantially asA described.

In testimony whereof I ax my signa.- ture in presence of two witnesses.

AD OLHE VERMERSCH.

Witnesses G. VEILTETT, PAIDIE. 

